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Query: UMLS:C0014118 (endocarditis)
 15,629 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Ninety-nine patients treated with penicillin G potassium, cephalothin sodium, or vancomycin hydrochloride were studied to evaluate single-drug therapy for nonenterococcal streptococcal endocarditis. Eighty-six patients survived; of these, 66 received penicillin alone. The maximum serum bactericidal titer obtained at the expected nadir of serum antibiotic concentration was 1:8 or greater in 70 (95%) of the 74 patients studied. No relapse occurred among the 66 patients treated wih penicillin. Only one patient experienced a relapse that occurred following therapy with suboptimal doses of vancomycin. Distinct second episodes of endocarditis occurred in five patients. While 13 patients died, none died of intractable infection. The treatment of endocarditis due to penicillin-susceptible streptococci with high-dose parenteral penicillin or a bactericidal penicillin substitute for four weeks or longer results in bacteriologic cure rates comparable with those achieved with combined penicillin-streptomycin regimens.
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PMID:Single-antibiotic therapy for streptococcal endocarditis. 10 35

Penicillin G alone is generally recommended for the treatment of infective endocarditis caused by Streptococcus bovis because clinical isolates of S bovis are represented as being uniformly and markedly susceptible to penicillin G. However, two strains of S bovis recovered from two patients with bacterial endocarditis were resistant to the lethal effect of penicillin G. Combination therapy, cefazolin sodium and gentamicin sulfate in patient 1 and penicillin G and gentamicin in patient 2, was necessary; synergy, as manifested by lethal activity against the infecting strains, was demonstrated in the laboratory. We stress the need to determine the minimal lethal concentration of penicillin G for clinical isolates of S bovis. Until such information is available, particularly in life-threatening infections, combination drug therapy, consisting of an aminocyclitol added to a beta-lactam antimicrobic, should be used.
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PMID:Infective endocarditis caused by Streptococcus bovis resistant to the lethal effect of penicillin G. 24 29

In a clinical trial including 701 patients 6-((R)-2-[3-methylsulfonyl-2-oxo-imidazolidine-1-carboxamido]-2-phenyl-acetamido)-penicillanic acid sodium salt (mezlocillin, Baypen) proved effective in the treatment of severe infections. It showed a particularly high efficacy in septicaemia and endocarditis and in purulent meningitis. In cases unresponsive to previous treatment with other antibiotics mezlocillin was effective in about two-thirds of the cases. Side effects were slight and of the same nature as those accompanying other penicillins.
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PMID:[Results of a multicentric clinical study of mezlocillin in Japan (author's transl)]. 39 30

Septic thrombosis of central veins is rarely diagnosed during life and nearly always proves fatal. We have recently successfully treated a patient with a 75% body surface burn in whom septic thrombosis of the inferior vena cava developed associated with high-grade candidemia as a complication of parenteral nutrition. Signs of venous thrombosis and candidemia persisted after catheter removal. Prompt and intensive therapy with amphotericin B, monitored by fungicidal assays of serum, resulted in cure. Generous hydration and directed supplementation of sodium bicarbonate permitted us to administer a large total dose of amphotericin over a relatively brief period of time with no nephrototoxic effect whatsoever. Septic central venous thrombosis mandates a pharmacologic approach to therapy similar to that used for infective endocarditis, with the addition of anticoagulation. Should sepsis prove refractory to this program of it pulmonary embolization occurs, operative intervention is indicated despite the high risks involved.
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PMID:Management of septic thrombosis of the inferior vena cava caused by Candida. 41

An investigation of the response of the activated clotting time to systemic heparinization during cardiopulmonary bypass and peripheral vascular surgery was prompted by the death from clotting of a patient with endocarditis while undergoing valve replacement. The activated clotting time during cardiopulmonary bypass was thereafter maintained at 300 to 400 seconds. Consumption of heparin sodium, derived from an individual dose-response curve, was 0.01 to 3.86 units/kg/min. There was no correlation between initial heparin resistance and the subsequent rate of consumption. Some patients undergoing peripheral vascular surgery required additional heparin after an initial standard dose of 8,000 units so as to maintain their activated clotting time at twice the control values. These data are discussed in relation to previous articles, and recommendations are made for adequate intraoperative heparinization.
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PMID:Identification of heparin resistance during cardiac and vascular surgery. 42 18

Haemophilus parainfluenzae endocarditis is characterized by great variation in the acuteness of presentation, difficulty in isolation of the pathogen, a 50% to 60% incidence of major arterial emboli, and variability of response to therapy. Prosthetic valve endocarditis (PVE) due to H parainfluenzae biotype II occurred in a 14-year-old girl with congenital heart disease and a Starr-Edwards mitral valve prosthesis. Management was complicated by a prolonged culture-negative period (eight days), intermittent bacteremia (only five of 15 positive blood cultures), an embolus to the right femoral artery, progressive congestive heart failure, and urgent prosthestic valve replacement. Cure was achieved with 44 days of ampicillin sodium-gentamicin sulfate therapy monitored by serum bactericidal titers.
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PMID:Prosthetic valve endocarditis due to Haemophilus parainfluenzae biotype II. 44 17

Seven cases of adult Haemophilus parainfluenzae infections diagnosed by positive blood cultures are compared with cases previously reported in the English literature. Three patients had pneumonia, while the others had epiglottitis with meningitis, pharyngitis, arthritis, and endocarditis, respectively. Nonendocarditic manifestations of adult H parainfluenzae infection were reported in four other cases. In addition to the diseases of our patients, H parainfluenzae also has been isolated from cerebral abscesses. Patients did well with antibiotic therapy and there were no deaths. Patients did well with antibiotic therapy and there were no deaths. Report of antibiotic sensitivity testing of 50 strains disclosed 6% of isolates resistant to ampicillin sodium, with all sensitive to chloramphenicol. If the antibiotic sensitivity of the organism is unknown, then chloramphenicol therapy should be instituted until adequate susceptibility studies have been performed. If the organism is sensitive to ampicillin, then this is the drug of choice.
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PMID:Adult bacteremic Haemophilus parainfluenzae infections. Seven reports of cases and a review of the literature. 47 36

Review of porcine valve xenografts in 68 patients over a 32-month period disclosed seven episodes of endocarditis in six patients, an attack rate of 10%. Four patients died as a result of the infections. The presence of Staphylococcus epidermidis in every case was most striking as was the preponderance of methicillin sodium resistance. The clustering of cases within a restricted time period, and the absence of subsequent cases, suggests the strong possibility of a nosocomial occurrence.
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PMID:Endocarditis associated with porcine valve xenografts. 51 18

Two patients with staphylococcal endocarditis were treated unsuccessfully with cefazolin sodium. One patient relapsed after 52 days of therapy. The second patient had concomitant central nervous system infection and failed to respond to cefazolin therapy. Both patients recovered with methicillin sodium or nafcillin sodium therapy. Other studies report unsuccessful therapy of staphylococcal endocarditis with cefazolin.
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PMID:Unsuccessful treatment of staphylococcal endocarditis with cefazolin. 57 84

Hepatotoxicity associated with intravenous sodium oxacillin therapy is reported in two drug abusers cured of staphylococcal endocarditis. Coincident with the administration of oxacillin, marked increases in hepatic transaminase were observed and liver biopsy showed nonspecific hepatitis. Upon cessation of oxacillin therapy, liver enzyme values returned to(ward) normal. Reports of oxacillin-associated changes in hepatic enzyme levels are reviewed; further observation of oxacillin-associated hepatotoxicity is warranted.
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PMID:Oxacillin hepatitis. Two patients with liver biopsy, and review of the literature. 63 61


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